Traxxas TRX-4M Pro-Built Low-Range Transmission with Titan 87T Motor – 9791R

Increase low-speed torque and crawling control on your TRX-4M with the Traxxas Pro-Built Low-Range Transmission – 9791R.

This complete transmission is professionally assembled with ball bearings and comes with a Titan 87T motor already installed, making it a quick bolt-in upgrade for drivers who want maximum control on technical rock-crawling terrain.

The 40.3:1 reduction ratio provides significantly lower gearing than the standard trail transmission, improving slow-speed modulation, climbing ability, and torque at the wheels.

There is no gear mesh to adjust and no internal assembly required.

Key Features

• Genuine Traxxas Pro-Built transmission

• Complete low-range crawler transmission

• 40.3:1 reduction ratio

• Titan 87T motor included

• Fully assembled

• Ball bearings installed

• No gear mesh adjustment required

• Increased low-speed torque

• Improved crawl control

• Direct-fit upgrade for compatible TRX-4M models

• Ideal for technical rock crawling

What's Included

• (1) Complete Low-Range Transmission

• (1) Titan 87T Motor – Installed

• Factory-installed ball bearings

Compatibility

Confirmed compatible with TRX-4M platforms including:

• Traxxas TRX-4M Ford Bronco

• Traxxas TRX-4M Land Rover Defender

• Other compatible TRX-4M models using the standard transmission mounting system

Gear Ratio

Reduction Ratio: 40.3:1

For comparison:

• 9791 – High Range / Trail: 16.6:1

• 9791R – Low Range / Crawl: 40.3:1

• 9791X – Speed: 9.7:1

Specifications

Brand: Traxxas
Product Type: Complete Transmission & Motor Assembly
Vehicle Type: RC Crawler
Scale: 1:18
Transmission Type: Low Range / Crawl
Reduction Ratio: 40.3:1
Motor: Titan 87T
Bearings: Installed
Assembly: Fully Assembled